Consider this statement: earth is the only source of gravity in the solar system. do you agree? give your reasons.

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Which substance can be broken down by chemical means

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.